Skip to content

Instantly share code, notes, and snippets.

@zhe-t
Last active January 9, 2025 17:15
Show Gist options
  • Save zhe-t/60938c69e29276b7a9f098e1b0672c79 to your computer and use it in GitHub Desktop.
Save zhe-t/60938c69e29276b7a9f098e1b0672c79 to your computer and use it in GitHub Desktop.
Smart send a transaction using Jito dedicated endpoint
import { Connection, SendOptions } from '@solana/web3.js';
export type JitoRegion = 'mainnet' | 'amsterdam' | 'frankfurt' | 'ny' | 'tokyo';
export const JitoEndpoints = {
mainnet: 'https://mainnet.block-engine.jito.wtf/api/v1/transactions',
amsterdam: 'https://amsterdam.mainnet.block-engine.jito.wtf/api/v1/transactions',
frankfurt: 'https://frankfurt.mainnet.block-engine.jito.wtf/api/v1/transactions',
ny: 'https://ny.mainnet.block-engine.jito.wtf/api/v1/transactions',
tokyo: 'https://tokyo.mainnet.block-engine.jito.wtf/api/v1/transactions',
};
export function getJitoEndpoint(region: JitoRegion) {
return JitoEndpoints[region];
}
/**
* Send a transaction using Jito. This only supports sending a single transaction on mainnet only.
* See https://jito-labs.gitbook.io/mev/searcher-resources/json-rpc-api-reference/transactions-endpoint/sendtransaction.
* @param args.serialisedTx - A single transaction to be sent, in serialised form
* @param args.region - The region of the Jito endpoint to use
*/
export async function sendTxUsingJito({
serializedTx,
region = 'mainnet'
}: {
serializedTx: Uint8Array | Buffer | number[];
region: JitoRegion;
}) {
let rpcEndpoint = getJitoEndpoint(region);
let encodedTx = bs58.encode(serializedTx);
let payload = {
jsonrpc: "2.0",
id: 1,
method: "sendTransaction",
params: [encodedTx]
};
let res = await fetch(`${rpcEndpoint}?bundleOnly=true`, {
method: 'POST',
body: JSON.stringify(payload),
headers: { 'Content-Type': 'application/json' }
});
let json = await res.json();
if (json.error) {
throw new Error(json.error.message);
}
return json;
}
@ankitzm
Copy link

ankitzm commented Jan 9, 2025

Did anyone got here txn success with jito using api call. How did you sent the transaction from frontend ?

@winer328
Copy link

winer328 commented Jan 9, 2025

it's same as be.

Did anyone got here txn success with jito using api call. How did you sent the transaction from frontend ?

@ankitzm
Copy link

ankitzm commented Jan 9, 2025

Sorry, I didn't understand.
sendBundle calls the api to get bundleId, but how it it send on chain from frontend ?

@winer328
Copy link

winer328 commented Jan 9, 2025

Sorry, I didn't understand. sendBundle calls the api to get bundleId, but how it it send on chain from frontend ?

we implement jito bundle with api request.
so also we can call it as api request.
Only sign tx with wallet in fe is different from be.
@Cool0328 (TG)

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment